Office 2007 - Have u read the license agreements ? Separate license for each partition

Linux Partition security recommendations

Partition setting: "Typical usage"

sulekha:-


whenever i install ubuntu using alternate install CD I will encounter this screen, can anybody explain the significance of the setting "Typical usage" ??

salasi:-

My interpretation (that is: guess) was that this would allow you specify other types of usage, such as the 'lots of small files' type of usage you might see with squid or an e-mail directory, vs the 'few big files' you might see with a media server so that it could adjust the number of inodes appropriately (or, just possibly, the use of write barriers, but that seems less likely).

Now as this is a complete guess, and I'm certainly prepared to be proved wrong (and learn from that): to that end, can you have a look at what other options there are other than 'typical usage', because then we should be able to be definitive about what this is about, please?


sulekha:-
it is something similar to what you have said. I tried a fresh install of ubuntu 12.04 using alternate cd to find out this

monitor installation

Suppose you are installing ubuntu via alternate install CD , how will you monitor installation ?

soln:-

simply press ALT-F4 to view the installation log.

this will help you in troubleshooting, usually the last message may identify the problems with installation, if any

How to add a CD/DVD to the repository list ?

sudo apt-cdrom -d /media/cdrom add


[for  /media/cdrom substitute directory of the mounted CD/DVD ]

auto save option in libre office

silent eye steganography app for linux

see:- http://www.silenteye.org/

Hiding certain file type access via samba

[data]
comment = testing only
path = /data
browseable = yes
writeable = yes
public = no
valid user = alok
vet files = /*.mp3/*.java/

v

browseable and available directive in samba

difference between browseable and available directive ?

The "available" parameter determines is a client can connect to the share. If set to "no" then it is as if the share has not been created.

The "browseable" parameter determines whether or not the name of the share is included in the list of available resources (shares) when browsing the system. It is possible to connect to a share that has been set as "browseable = no" simply by using the UNC name.

i

create debian package out of installed packages

dpkg-repack:-

dpkg-repack creates Debian package file out of a package that has already been installed. If any changes have been made to the package while it was unpacked (e.g., files in /etc were modified), the new package will inherit the changes.

This utility can make it easy to copy packages from one computer to another, or to recreate packages which are installed on your system but no longer available elsewhere, or to save the current state of a package before you upgrade it. 


Example situation:-

-> install great game non free from game writer company
-> game writer company goes bankrupt & your CD-ROM is lost.
-> Buy a new computer , want to play great game non free




use dpkg-repack to create a new package to install on new computer


install dpkg-repack:-  apt-get install dpkg-repack

 dpkg-repack coreutils


 mine:~# dpkg --contents coreutils_5.97-5.3_amd64.deb 
drwxr-xr-x root/root         0 2007-02-17 01:44 ./
drwxr-xr-x root/root         0 2007-02-17 01:44 ./bin/
-rwxr-xr-x root/root     69104 2007-01-30 20:38 ./bin/mv
-rwxr-xr-x root/root     15560 2007-01-30 20:38 ./bin/false
-rwxr-xr-x root/root     40128 2007-01-30 20:38 ./bin/touch
-rwxr-xr-x root/root     36072 2007-01-30 20:38 ./bin/chmod
-rwxr-xr-x root/root     21448 2007-01-30 20:38 ./bin/cat


If you don't wish to run the rebuild as root, and you have the fakeroot package installed you can do so as follows:

skx@mine:~$ fakeroot -u dpkg-repack bash
dpkg-deb: building package `bash' in `./bash_3.1dfsg-8_amd64.deb'.


for more options see man dpkg-repack

dpkg-repack [--root=dir] [--arch=architecture] [--generate] packagename [packagename ...]



Examples:-

sudo dpkg-repack --arch=amd64
dpkg-repack --help


HOWTO: Backup all installed programs/packages

soln: fakeroot -u dpkg-repack `dpkg --get-selections | grep install | cut -f1`

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Reply to celsius thomas

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how to install microsoft fonts in ubuntu

  method 1 :-

              sudo apt-get install ubuntu-restricted-extras


  method 2:-  

 If you have Windows, you may copy your ttf fonts in
  C:\Windows\Fonts to /usr/share/fonts/truetype/ folder.

    Then run the command sudo fc-cache -f -v

How to find which package is taking a lot of space in ubuntu ?

rscgl@debian:~$ dpkg-query --show --showformat='${Package; -50}\t${Installed-Size}\n' | sort -k 2 -n | grep -v deinstall | awk '{ printf "%.3f MB \t %s \n", $2/(1024),$1}'| tail -n 10

IRC How to ?

How to insert Rupee symbol

 Press CTRL + SHIFT + U

type  20b9 then press space

checked in ubuntu 12.04, for lucid (10.04) update ubuntu font family and try

How to use graphicsmagick package to convert jpg to pdf ?

1) graphicsmagick package gm convert name.jpg output.pdf


 2) gm convert *.jpeg 1400 x 1600 filename.pdf


3) gm convert *.jpg -adjoin sample.pdf gm convert [0-9][0-9][0-9].jpg -adjoin hhh.pdf


gm convert 1.jpg 2.jpg 3.jpg 4.jpg 5.jpg 6.jpg 7.jpg 8.jpg 9.jpg 10.jpg -adjoin hhh.pdf

 gm convert 1.jpg 2.jpg 3.jpg 4.jpg 5.jpg 6.jpg -adjoin hhh.pdf



gm convert 1.jpg 2.jpg 3.jpg 4.jpg 5.jpg 6.jpg 7.jpg 8.jpg 9.jpg 10.jpg 11.jpg 12.jpg 13.jpg 14.jpg 15.jpg 16.jpg 17.jpg 18.jpg 19.jpg 20.jpg 21.jpg 22.jpg 23.jpg 24.jpg 25.jpg -adjoin hhh.pdf


 gm convert 1.jpg 2.jpg 3.jpg 4.jpg 5.jpg 6.jpg 7.jpg 8.jpg 9.jpg 10.jpg 11.jpg 12.jpg 13.jpg 14.jpg 15.jpg 16.jpg 17.jpg 18.jpg 19.jpg 20.jpg 21.jpg 22.jpg 23.jpg 24.jpg 25.jpg 26.jpg 27.jpg 28.jpg 29.jpg 30.jpg 31.jpg 32.jpg 33.jpg 34.jpg 35.jpg 36.jpg 37.jpg 38.jpg 39.jpg 40.jpg 41.jpg 42.jpg 43.jpg 44.jpg 45.jpg 46.jpg 47.jpg 48.jpg -adjoin hhh.pdf

How to enable compiz effects

compiz :- step 1:- install the following packages:- compiz, compiz-plugins, compiz-extra, compiz-fusion-plugins-main,compiz-fusion-plugins-extra, compiz-core,compiz-gnome,fusion-icon, compizconfig-settings-manager  


step 2:- ALT-F2 run compiz --replace (replacing metacity and run compiz as window manager)  


step 3:- Set up compiz effects:- System -> preferences -> "Compiz Config Settings Manager"

i) Search for "animations" -> "enable Regex matching" -> also check animations add on click animations icon -> Open Animation -> Open effect "zoom" Duration "585" "close Animation" - zoom close Effect -> Burn , Duration - 619 Minimize animation -> minimize effect -> "explode" Duration 654

 ii) Filter for cube:- Desktop cube , Rotate cube (tick) General options -> desktop size 4 Rotate cube (CTRL -ALT + LEFT/RIGHT ARROW)

 iii) Filter for "move" , tick "move window" iv) Filter for "decorate" , tick "window decoration" (title bar , xbutton)  

v) Desktop effects (a) "Enhanced zoom desktop" turn it on (Super key + mouse wheel) (b)  

vi) Effects section:- (a) 3D windows (CTRL + ALT + MOUSE) (b) Wobbly -> "wobbly window"



NB:- Tested in Debian Squeeze Make sure that you have graphics card installed in your machine

Digital Diary software

If you want to have a private digital diary software then install lifeograph

see:- http://lifeograph.wikidot.com/ for more details

Wipe a hard disk

1) Create a backup:- dd if=/dev/sdax of = /tmp/backup.img 2) To wipe dd if/=/dev/urandom of=/dev/[partition-to-wipe]

How to extract *.xz files ?

How to extract *.xz files ?

If you are running Ubuntu, you should have the xz-utils installed by default. I am running Ubuntu 10.04, and to extract .xz files, I use the following command:

if it is not installed , install by giving the command:- sudo apt-get install xz-utils


xz -d path/to/file.xz

This will extract the file to the current directory.

How to create symbolic links graphically

soln:- press CTRL +SHIFT & Drag

Do not show known users in login window ?
How to remove gdm users list ?


Method 1:

sudo gconf-editor






Method 2:-


sudo -u gdm gconftool-2 --set --type boolean /apps/gdm/simple-greeter/disable_user_list true

Malayalam oin linux

allows access to the system by the user root only

PAM NOLOGIN:-

* allows access to the system by the user root only
* obviates the need to shut down services

* displays the contents of /etc/nologin file

sample content of this file :-

CURRENTLY WE ARE UNDERGOING SYSTEM MAINTENANCE, EXPECT US BACK IN 1600 HOURS

add the following directive

auth required pam_nologin.so to the relevant pam file.
(ex:- for ssh /etc/pam.d/sshd file)


[root@BACKUP-SERVER ~]# find / -name pam_nologin.so
/lib64/security/pam_nologin.so
/lib/security/pam_nologin.so

How will you implement account lockout policy in linux?

How will you implement account lockout policy in linux?

soln:-

PAM_TALLY

* ability to tally failed login attempts and take actions
* Denies user access to the system based on no: of failed login attempts
* This feature / module not enabled by default
* uses /var/log/faillog - logs failed logins
* manipulate failed login counters


which pam_tally ?

/usr/sbin/pam_tally (i.e it is a root enabled utility)


* pam_tally --user username :- displays the count of the username


resetting a failed login counter:-

pam_tally --reset=n --user=username

Add the following line to /etc/pam.d/common-auth

auth required pam_tally.so deny=3 unlock_time=1800

NB:- tested in centos -5.5

for ubuntu systems see:- http://blog.bodhizazen.net/linux/ubuntu-how-to-faillog/

Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora

This is one of the worse errors i came across so far, whenever i tried to update my fedora 12 through yum there was an error saying

[Errno 14] PYCURL ERROR 7 – “”
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora. Please verify its path and try again

there were tons of solutions available on googling, but most of them were useless. This is how i worked out the problem

first of all if you are using proxy server,configure your yum.conf file so that you can link to proxy

after that try the following commands

#yum clean all

#yum clean metadata

Now try to update again using yum, even if the same error is coming... it is probably due to python .

Since the python does not handle https proxy well, change all the https present in *.repo files in /etc/yum.repos.d/ to http

Here’s the way to do it… edit your repository files /etc/yum.repos.d/fedora.repo and /etc/yum.repos.d/fedora-updates.repo by commenting all the lines starting with term mirrorlist and uncommenting all the lines starting with term baseurl.

Now append the following to your /etc/hosts file

80.239.156.215 mirrors.fedoraproject.org

213.129.242.84 mirrors.rpmfusion.org

This worked for me and hopefully it must work for you also. If you want a copy of all *.repos file then ask in comment.


see:- http://rishabhsays.wordpress.com/2010/01/24/error-cannot-retrieve-repository-metadata-repomd-xml-for-repository-fedora/